21202102112000 has 72 divisors (see below), whose sum is σ = 52817086703472. Its totient is φ = 8480840832000.

The previous prime is 21202102111979. The next prime is 21202102112041. The reversal of 21202102112000 is 21120120212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331250846 + ... + 331314845.

Almost surely, 2^{21202102112000} is an apocalyptic number.

21202102112000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21202102112000 is an abundant number, since it is smaller than the sum of its proper divisors (31614984591472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21202102112000 is an frugal number, since it uses more digits than its factorization.

21202102112000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662565722 (or 662565698 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21202102112000 its reverse (21120120212), we get a palindrome (21223222232212).

The spelling of 21202102112000 in words is "twenty-one trillion, two hundred two billion, one hundred two million, one hundred twelve thousand".